Roll over protection structure



FIG. 1 is a rear right side perspective view of a roll over protection structure;

FIG. 2 is a right side view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a rear view thereof; and,

FIG. 7 is a rear perspective view of the roll over protection structure mounted to an excavator.

The broken lines are for illustrative purposes only and form no part of the claimed design. 

CLAIM We claim the ornamental design for the roll over protection structure, as shown and described. 